"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   49.77059
        63,   51.68325
       125,   42.27148
       250,   48.78703
       500,   66.02995
      1000,   65.40379
      2000,   46.15395
      4000,   39.92937
      8000,   18.08459
     16000,   17.02643